Compiling the nvlink stuff relies on the SPAPR_TCE_IOMMU otherwise there
are compile errors:
drivers/vfio/pci/vfio_pci_nvlink2.c:101:10: error: implicit declaration of function 'mm_iommu_put' [-Werror,-Wimplicit-function-declaration]
ret = mm_iommu_put(data->mm, data->mem);
As PPC only defines these functions when the config is set.
Previously this wasn't a problem by chance as SPAPR_TCE_IOMMU was the only
IOMMU that could have satisfied IOMMU_API on POWERNV.
Fixes: 179209fa1270 ("vfio: IOMMU_API should be selected")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
drivers/vfio/pci/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Example .config builds OK after this.
diff --git a/drivers/vfio/pci/Kconfig b/drivers/vfio/pci/Kconfig
index ac3c1dd3edeff1..4abddbebd4b236 100644
--- a/drivers/vfio/pci/Kconfig
+++ b/drivers/vfio/pci/Kconfig
@@ -42,6 +42,6 @@ config VFIO_PCI_IGD
config VFIO_PCI_NVLINK2
def_bool y
- depends on VFIO_PCI && PPC_POWERNV
+ depends on VFIO_PCI && PPC_POWERNV && SPAPR_TCE_IOMMU
help
VFIO PCI support for P9 Witherspoon machine with NVIDIA V100 GPUs
--
2.31.0
